A tool we've built to help solve the problem is described at www.hotsos.com/products/laredo.
Cary Millsap Hotsos Enterprises, Ltd. http://www.hotsos.com Upcoming events: - Hotsos Clinic, Dec 9-11 Honolulu - 2003 Hotsos Symposium on Oracle� System Performance, Feb 9-12 Dallas - Jonathan Lewis' Optimising Oracle, Nov 19-21 Dallas -----Original Message----- stephane Sent: Tuesday, November 19, 2002 3:50 PM To: Multiple recipients of list ORACLE-L We will be in the same process soon. We'll have to consolidate over 100 instances to something between 40-60 instances and switch from RBO to CBO. Any tips are welcome. --- Steve McClure <[EMAIL PROTECTED]> a �crit : > I am just starting to look at converting to the cost > based optimizer, and am > hoping a few of you can share insights from having > done so in the past. Our > application is an oltp system developed on 7.3.4. > We made liberal use of > +0 and other RBO "hints", and I am wondering if > these are going to cause us > troubles when switching to CBO. > > We have been on 8i since April of this year, and I > am just now starting to > gather information on the inner workings of the CBO. > I know it is where I > want to be, I am just looking to see how > painful/painless the transition > will be. > > Steve McClure > > -- > Please see the official ORACLE-L FAQ: > http://www.orafaq.com > -- > Author: Steve McClure > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 > http://www.fatcity.com > San Diego, California -- Mailing list and web > hosting services > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an > E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of > 'ListGuru') and in > the message BODY, include a line containing: UNSUB > ORACLE-L > (or the name of mailing list you want to be removed > from). You may > also send the HELP command for other information > (like subscribing). ===== St�phane Paquette DBA Oracle et DB2, consultant entrep�t de donn�es Oracle and DB2 DBA, datawarehouse consultant [EMAIL PROTECTED] __________________________________________________________ L�che-vitrine ou l�che-�cran ? magasinage.yahoo.ca -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?q?paquette=20stephane?= INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Cary Millsap INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
